Apparatus for selecting and separating warp-threads in the preparation of the warp for looms for weaving.



v R. MOORE. APPARATUS FOR SELECTING AND SEPARAT 'ING WARP THREADS IN THE PREPARATION OF THE WARP FOR LOOMS FOR WEAVING.

APPLICATION FILED MAY 25, IBIS- 1 25 546.v Patented Mar. 19,1918.

Fla 1 5 SHEETS-SHEET lg i C R. MOORE. APPARATUS FOR SELECTING AND SEPARATING WARP THREADS IN THE PREPARATION OF THE WARP FOR LOOMS FOR WEAVING.

APPLICATION FILED MAY25. 1916- 1,259,546. Patented Mar. 19, 1918-.

5 SHEETSSHEET 2.

.Fi g. 2.

R. MOORE. APPARATUS FOR SELECTING AND SEFARATING WARP THREADS lN THE'PREPARATION OF THE WARP FOR LOOMS FOR WEAVI NG.

APPLICATION FILED M'AY25, 1916.

1,259,546. PatenEeg I I EL OI8.

uJII T H Xi W WW zgaw R. MOORE. APPARATUS FOR SELECTING AND SEPARATING WARPTHREADS IN THE PREPARATION OF THE WARP FOR LOOMS FOR WEAVING.

APPLICATION FILED MAY25.19|6. 1,259,546. Patented Mar. 19, 19i8,

5 SHEETS-SHEET 4.

W r g f v .R. MOORE.

APPARATUS FOR SELECTING AND SEPARAHNG WARP THREADS IN THE PREPARATION OF THE WARP FOR LOOMS FOR WEAVING.

APPLICATION FILED MAY25|1915- 1,259,546. Patented Mar. 19, 1918.

SHEETS-SHED 5- "'f'i jasese iselected threadslare spaced? in a .1 -':.e'nabling them to --be drawn tough the healds and r'eed-"by-t-he operator."

' In machines of this class motion hasbeen nii PATENT onnion;

. Tolall-ibho m it hilagjooacemi i it? HQ n-that '1, Bonner -Moon1'i, a

Subject of heKin'g of Great Britain, re?

. siding at 27 Coleridge street-,-'Blackburn, in

Bethe, county, of Lanoaster-,=:Eng1and,' have inwvented, certain.- knew and useful- Improve-- cments in Apparatustor- Selecting and Sepa- -.rating arp-Threads in the Preparation of the-Warp for Looms for Weaving; of which lathe. .follow ingis a specification.

- Thi s invention relates tou apparatus' for selecting andwseparatin'g warp threads. in

i'witha hook'devioe at one-side is caused to travel-past the warp threadswhile-the latterrar'eiii a stretched conditiom the selector a,- needle: as-it approacheseach warp thread 20 engaging same *Withia forward movement and trans-iierning' itywith a diagonal move- -inent'ionto ref-guide frame'-along"wh i ch the osition for imparted to the carriage and selector needle by a .treadle controlled by'the operator a specintiition of Letters Ratent'.

frame.

nonnn'r 11003 2,; or 1 BLACKBURN, ENGLAND;

rdasinnndgtrrid'niin snraniarms WARP-THREADS IN THE PREPARATION on min was? F03. Loonsron WEAVING.

Patented Mar. 19,1918.

. I 'A pne uon filedltay 25,1916. Seria1No.99,'903.

which are spaced alslight distance apart from one another so that they hold theportion of the warp thread whichcrosses and lies-between them, in'a rigid condition suitable'for imparting movement to the feeler so last mentioned.

In'the accompanying drawings Figure 1 is'a front elevation of the apparatus for selecting and separating Warp threadsconstructed in accordance with this invention.

Fig. 2 is a transverse section of the apparatus looking in the direction of the arrov shown inFig. 1.

Fig.5 an inverted plan of the carriage with its selecting and separating mechanism drawn to a-larger scale.

Fig.6 is an'elevation of a traveling heald Fig.7 is a sectiontaken through the lower part of the frame.

Fig. 8 is a plan showing a modified form of apparatus for imparting motion to the ratchet wheels. I

Fig". 9 is a plan showing a modified form of control apparatus and Fig. 10 is an'in- I verted plan.

Fig. 3 is an elevation Fig. 4; a and A indicates the carriage, B the selector 1 needle,-whioh acts as a warp feeler to stop 8;)

the carriage at intervals,' 0 the warp feeler which controls the stop motion and D the ratchet wheel which. constitutes the toothed guide. I

The carriage A has wheels a, a which rest 'upon guides or rails a on the frame E which supports the warp beam F and retains the warp threads f in a stretched condition. The rails a are advantageously recessed at a to constitute bearing surfaces for wheels 0; (Figs. 3 and 5). These wheels prevent the carriage running off the side of 1 the track'and reduce friction. They may I however be dispensed Withand flanged wheels may be used in place of the same and '100 v the wheels a, a Mounted on the carriage is an electric motor G which is driven from i "any suitable source of electricity supply which may be conveyed to the motor through a flexible connection such as'G On the motor shaft is a worm g gearing with a "worm wheel 9 that is rigidly fixed on a shaft 9 which also carries two eccentrics b and H (Fig. 5) which are set one in advance of the other. The eccentric 1) works in a f -.depression of'the -treaille ;-being' required for 30 each! 1-threadthat is selected. "=--*Accordin-gto thisinigention the carriage is driven by. electricalor mechanical power I a'nd is provi'dedi with two warp feelers of which one automatically stops the traverse 35 of the carriage'at intervals to prevent undue crowdiing bfitlie-"unse warps, and the other, by breaking j an? electrical contact Jon-by -bring1ng a hrake -orlstqp motion into i operationautomatically stopsthe machine 40 'or putsthe selecting arating mecha'- nism" outpf' operation'ih t 1eevent of the selected threads ac'ci'nnulatin'g faster on' a v separating guide than they'*can be taken 45 1A" feature'of the' invention consists in employing toothed'guide on which the warp thread are, depositedby the selector needle, and whihhf a'dvahces to present a has; spac'-orf tooth' fforj ea h. succeeding 50 selectedthre dor group ofselected threads,

the said' jinovemcnt :01: the guide also jadvahcing the selected threads toward the feeler which controls he electrical contact or stopj'motioni'Thetqhthedguide advan- 55 tageously comprises two ratchet wheels turn about its .pivot during the oscillatory movement ofthe slotted lever b a spring 5 causing the bowl or runner to engage the said cam surface during the movement of the lever 5 This construction causes the needle B on its forward stroke to move outside the radius of the ratchet wheels D and toward the termination of such stroke to be tilted and occupy a position within the ra dius of the ratchet wheels which position it maintains for a portion of its return stroke and is then again moved outward from such wheels. Instead of the needle being situated below the wheels it may be arranged to work between, or above the same. The latter are mounted on an axle d and receive an intermittentrotary motion from a pawl d (Fig. 4). pivoted to the lever b and engaging a ratchet wheel d rigidly connected with the spaced ratchet wheels D. These Wheels are so advanced one tooth during each forward movement of the lever b and prevented from turning back, or from turning back heyond a predetermined distance by a pawl 01. The eccentric H works in a slot in in a lever 72 that is pivoted at k and has an arm k that is adapted to bear against one arm M of a lever whose other arm h is weighted. Pivoted to the arm h is a catch or pawl 72 which engages a ratchet wheel an it on the axle of thefron't wheels 0. Each time the arm it advances it actuates, the

catch "72. to rotate the front axle throughia I 5: enable the carriage to be moved backward when required a stud or'key h is fiXed'at one end of a lever 723 of which the otherend passes under the catch or pawl it so that when the stud or key is depressed, the catch or pawl is lifted out of engagement with the ratchet wheel h of the front axle. The warp feeler C which controls the stop motion comprises a lever which is pivoted between the ratchet wheels D. One end of no this lever projects to or beyond the teeth of the said wheels and the other end. is connected by a link '0 with a movable contact through the intervention of an insulation piece 0 and weight 0 the contactc being at adapted to be moved into and out of contact with a stationary contact c for making and breaking the motor-circuit. The Warp beam 13 is conveniently supported near the bottom of the-frame E by hooked brackets f and a form of apparatus for supporting. and stretching the Warp threads f comprises a roller 'f, a clamping roller f and a pair of clamps f". The clamping roller i is formed W1th a longitudinal groove f to receive a bar 7 which is secured in such groove by screws, rings or clamps. This roller is provided with a worm Wheel 7" operated by a worm f and handle f. The lower pair of clamps f comprise two bars lined with felt or other appropriate material and secured together by spring clips f which will hold the warp'threads in a stretched position and yet allow them to he pulled through by the operator for threading purposes and for getting an even tension on the threads. The clamps f are advantageously mounted on a pair of arms 1" one at each end of the machine-ahd'arranged to occupy either of two positions at will. For this purpose each armf is provided with another arm f hav'in a projection f at its end andrigi'dl'y lixed .on a

shaft f in proximity to these arms are two catches f The upper end of each catch is formed with arecessj fl" to interlock with the end of-the arm 7'" when thelatter, occupics the position shown by the full lines in Fig. 2. The lower end of each catch is heavier than the upper end and is recessed at f" to engage the projection f when the parts occupy the position shown by the brokenlines in Fig. 2.

After the beam F has been placed ill p0 sition, the tapers striker comb to which the ends of the warp threads are fastened are passed over the. rollers f f to the clamps 7; 'During this operation the arms i occupy the position shown by the broken lines with one 'of-- the clamp members f removed. as shown-Iin .Fig. '2. The warp threads are now brushed to cause the fibers to lie in one direction so that the warp threads will not cling to one another during the subsequent selecting. operation and cause the selecting needle B. to'take more than one thread at a time. When-this operation has been completed, the clamp member is replaced and secured tothe other clamp mem her by the spring clips f. a I The clamps are-then moved in an upward direction to'discngage the. projections f from the recesses f" whereupon the catches 1 returnto their upright position. The

clamps are/now moved back until the arms 1'' rise above the catches f and rest upon the recessed portions f therein, the 511011]- ders formed bythe recessed portions caus ing the parts to be retained in the position indicated by the full lines in Fig. 2 until the catches f" are again turned to move their upper ends away from the arms f. The warp threads are now pressed into the groove f in the roller f by the bar f which 15; then secured in the manner described. The handle 7 is now turned to tighten the warp threads and draw all threads to an even tension, The healds J are now placed in position and the carriage A is placed upon the rails a in suitable proximity to the warp threads. 9 (Fig. 4) indicates a switch for starting and stoppin the motor and K indicates a switch for a lamp k that is conveniently fixed atlthe front of the m0- ton. As soon as t e latter is started the carriage advances with an. intermittent motion toward the warp threads and the selector needle comes in contact therewith and each time such needle moves forward it deposits a thread set-ween two of the teeth on the spaced ratchet wheel D which as already mentioned advances through a space of one tooth. at each forward 'niovement of the needle. The threads f are the threads that have. been separated and selected by the machine their position being somewhat exaggerated for the sake of clearness. If the machine isfeedin too quickly the pressure of the warp threa s against the needle overcomes the pull exerted by the spring 6 and prevents the bowl or runner b from acting upon the projection it on the arm 70 to effect the return movement of the catch or' pawl it. When this takes place the carriage stops and remains stationary until the pressure against the selector needle is relieved by the needle continuingto select threads while the carriage remains stationary. As soon as this pressure is relieved the selector needle can again move t rough its ordinary course andallow the pawl it to come into gear with its ratchet wheel whereupon the carriage commences to travel. As the threads are deposited in a spaced position across the ratchet wheels D as shown zit-f" theyare taken off by thedrawer-in and drawn through. the heald eyes and if such person is unable to keep up with the machine,'the threads are carried forward by the rotation of the wheels until they come into contact with the feeler C and turn the latter to a position in which the movable contact 0 is separated from the stationary c0nfact 0". When this takes place the motor. stops and remains at rest until the threads have been picked oif the ratchet. wheels whereupon the feeler is returned to its normal position by the weight 0 and the electrical contact is rchstablished and the motorheald eye directly opposite to its respective warp thread or threads and sc -render the drawing-in operation unaffected by variations between the length across the beam and the length across the healds.

In the example shown the frame L is provided at its upper part with flan ed wheels Z which rest upon a rail eon the rawing-in frame, Thelow'er part of .the frame L conveniently comprises two spaced bars fixed to opposite sides of the vertical members of the frame. Attached to a rail 2 on the drawing-in frame are two brackets e on which are mounted wheels or runners c (Fig. 7 of vertical and longitudinal adjustment in relation to the rail e and-the wheels or runners e may also be arranged 'to be adjust- These brackets may be capable f able on the brackets 6 sons to occupy a position closer to or farther away. from the rail in accordance with the position to be.

occupied by the frame L. A method of en abling' these adjustments to be effected consists in forming the brackets with slots e, e".

j,'j indicate the upper and lower heald staves which carry the healds J. The upper-staves j are suspended by iinks or stirrups from the top rail of he 'frame L- and the lower heald staves 7' are! connected by forked rods j which pass 'between the spaced bars at the lower part' of theiframe L and' are secured by winged nuts if by means of which and adjustin screws on the ,links' or 'st irrups the] ealds can be supported me state of tension. 1

In the modification shown in Fig. 8 the pawlzi is pivoted on an arm (1 that is piv-- oted to the top of the carriage and provided with an abutment adapted to be en-- gaged and moved in a forward direction by the end of the lever b the return movement being effected by a spring: d, In the example sltown the abutment comprises a screwd which can-be'adjusted to regulate the le ngt of traverse of the pawl and securedin i is adjusted position by a screw 0!. If a clockwork or other mechanical "motor is employed or if the carriage is driven from any other source of power the ,feeler may operateupon' a brake or other approimpart ed to the feeler C by the selected threads toput. the selecting and separating mechanism. out of operation without necessarily stopping the motor or driving mechanism. In applying this-principle to a machine provided with a selector needle B and toothed wheels D the feeler C is provided at one end a? with a projection 0 or is otherwise adapted to engage the pawl d or one I I arm of a two armed lever b that is pivoted on as! In] 5" projecting from the underside of the carriage.- The other arm of the lever I)" hasa'projectioii or "pin-b that is adapted to engage one side of the selector needle B and preventits moving outwardly to' selccta thread. "The action is as follows:--

When a :thread on the toothed wheels I) turns the. feeler (l, the projection of moves tl1e=le\ierb and a pin b 'thereon moves the pawld out ofgearwvith the, ratchet wheel id and the pawl d canfth'en continue its lovements without'imparting) any further movement to the wheels Simulta neously, mapproximatcly simultaneously with'this i'i-io'vem'ent the pin I) is brought against the side of the needle B and moves the latter away from'the unselected threads so that as itwmo es forward it misses the latter and ceases to perform its selecting operation. WYhen the thread or threads that havc'been'exertingpressurc upon the feeler ,C have been picked off the toothed wheels ,1) the parts are returned to their normals-positions by .the spring b attached to thedever b and needle holder b.

What Lclaim by my invention and desire to. secure .by-Letters Patent in the United 1. In apparatus for selecting and separatingwarp-threads in which a power driven carriage containing warp selecting and separatin mechanism is adaptedto be driven past t 1e warp threads, the combination of two-warp feelersenact which is actuated by pressure of. unselected warp threads to stop thetravcrse ofJthe-carriage at intervals andftl eother is actuated by pressure of se looted warp. threads to bring the whole machine to rest riage at intervals and the oth r warp. feeler being actuated by pressure-oi? selected warp threads to bring theiwhole machine to rest.

3.- In apparatus afo selecting and' separating I Warp threads in which a power driven carriage containing warp selecting and separating mechanism is adapted to be driven past the Warp threads, the combination of a selector needleand a multiple toothed guide, means for actuating the se- 2,; In apparatus forseleetin and sepaf,

1 guideand' lector needle to transfer he threads successively onto the multiple toothed guide, a iccler situated in proximity to the multiple toothed guide and arranged in operative connection with a stop motion, and means for advancing the multiple toothed guide to present a fresh spacei'or each succeeding riage and controlled by the pressure of the foremost of theselected threads to put the machine out of operation when a number of such threads have been deposited onthe separator and a motor mounted on the can. rifage and arranged to'impart a traversing motion thereto and to actuate the selector needle and thread separator.

5. In apparatus for selecting and sepav rating warp threads in which a carriage containing warp selecting and separating mechanism is adapted to be driven past the warp threads, a selector needle, a multiple toothed movable thread separator on which a number of-threads are successively deposited by the selector needle, a warp feeler actuated by pressure of the unselected threads to'stop the traverse of the earria e at inter Vale, and another feeler actuated y pressure of a selected thread to put the selecting and separating mechanism out of operation.

6. In apparatus for selecting and separating warp threads in which a carriage containing warp selectin and separating mechanism is adapted to e driven past the warp threads, a thread separator comprising' two toothed wheels arranged coaxially pivoted between the same, a' stop' motion arranged in operative connection with such feeler, a selector needle arranged to deposit selected threads across -such wheels,. and means for imparting an intermittent rotary motion to the latter. 1

In testimony whereofl aflix my signature in presence of two witnesses.

, r. ROBERT MOORE. Witnesses:

ARTHUR AvnnY, G. P. APPLEYARD. 

